Emile paul dumanois



Get 7, 1924'.

E. P. DUMANOIS CARBURETING APPARATUS Filed April 24. 1923 Emile. aul Dun-1a n 015 1 VENTOR;

$6 Attorney.

- ing' a well-defined composition and pressure. Said apparatus is a modification of the de- Patented Oct. 7, 1924.

EMILE PAUL DUMANOI S, PARIS, FRANCE.

CARBURETING APPARATUS,

Application filed April 24,

To all whom it may concern:

Be it known that I, EMILE PAUL DUMANOIS, citizen of the French Republic, residing at Paris, in the French Republic, have invented new and useful Im rovements in Carbureting Apparatus, of which the fol lowing isa specification.

The present invention has for its object a carbureting apparatus permitting to obtain a mixture of air and combustible gas havvices described in my prior patent application 547,623 and is particularly advantageous when one of the gaseous constituents of the mixture is stored under pressure, whilst the other may also be stored under pressure or brought by means of a pump to the desired pressure, in order to finally obtain the necessary quantity of carburetted mixture at a suflicient pressure.

An important feature of the carbureting apparatus according to the invention is that it comprises two reservoirs into which the air and the fuel gas are delivered, these two fluids being either stored up at the same pressure by means of a system of automatic valves, or stored up at different pressures, the mixture of these two fluids being made at the time of use by the discharge into a common piping; the proportioning is effected in accordance with the respective volumes of the reservoirs and the pressures prevailing therein in case these pressures are diiferent.

The carbureting apparatus according to the invention may be particularly used to form a gas mixture whose combustion gives a flame whose chemical properties are well determined, either oxidizlng or carbureting,. or further in order to form a mixture having a rapid combustion for the starting of internal combustion engines in all their applications.

The accompanying drawing shows dia grammatically by way of example an embodiment of the invention.

The air reservoir 1 is supplied by a source of compressed air, storage device or pump, through the intermediary of a clack valve 2 and a cock 3. The fuel gas reservoir 4 is also supplied either by a storage device containing the com ressed or dissolved gas, by a generator or y a pump, through the medium of the clack valve 5'and the cock 6.

The reservoirs 1 and 4 communicate re- 1923. Serial No. 634,210.

spectively through the pipes 7 and 8 and the automatic va ves 9 and 10 with a mixing chamber 11 of suitable capacity having thereon the outlet pipe 12 for the carburetted mixture. A cook or valve 13 with rapld closing, of the quick stroke or punch type for, example, is mounted on the pipe 12. The inner surface of the mixing d evice has a suitable profile in order to obviate eddles and to offer no hindrance to the dis charge of the mixture into the piping 12. On t e mixing device is mounted a valve 14 whose spring has a suitable tension corresponding to the common pressure which is to be had in each reservolr 1 and 4; said valve 14 actuates an indicating apparatus 15 of any kind, but which may be constituted for example simply by a whistle.

The operation of the carbureting apparatus is as follows: The cock 3 is opened, and the compressed air coming from a storage device or a pump enters the reservoir 1, opens the valve 9, enters the mixing device 11' and closes the valve 10; the valve 14 is closed by its spring. When the pressure in the reservoir 1 and chamber 11 is sufficient, the valve 14 is raised from its seat, and this sets the indicator 15 inoperation. The cock 3 is then closed and the valve 14 closes. If the feed is carried out by a pump, the cock 3 can be dispensed with.

The cock 6 is now opened, and the compressed gas coming for example from a storage device now enters the reservoir 4. The valve 10 is always held on its seat since the pressure in the reservoir 1 is still prevailing in the chamber 11. When the pressure within the reservoir 4 becomes equal to that in the reservoir 1, the valve 10 opens, and an instant after, the pressure in the mixing chamber 11 becomes higher than that corresponding to the tension of the spring of the valve 14, so that the latter will open and the indicator 15 is set in operation while the valve 9 is closed. The cock 6 is then closed. 'In this manner, the reservoir 1 is filled with air. and the reservoir 4 is filled with combustible gas, the pressure in both reservoirs being the same and being that which corresponds to the adjustment of the spring of the valve 14.

It is thus simply necessary that the two reservoirs shall have the relative volumes determined by the composition of the requisite carburetted mixture, with suitable sections of the pipes 7 end 8, in order to obtnin, by opening 13, the simultaneous discherge of the two fluids through the vnlves '9 end 10, end to obtein the desired mixture rovided the velves 9 end 10 ere udjusted or the some pressure, the letter being preferebly as low as possible.

Ubviously, instead of using at single valve 14 with an indicator 15, use may be mede of one vulve upon euch reservoir or said.

valve may be replnced by u pressure gnu c. When two valves having been suitebly re etively adjusted are used, it is possible to utilize the two fluids at different pressures by u suitable modificetion of the volume of the reservoirs. In the lost two cases, the

valves 9 end 10 ere replaced by closing devices with simultaneous control for example of the punch type, end the closing device 13 is sup ressed. When the reservoirs ere filled on at the desired pressure, it is simply necessary to operete the control de vice providing for the simultaneous 0 ening 0 both closing devices, in order to orm intense the cerburetted mixture in the common discherge pipe.

Heving now described my invention, 1 declore that whet ll eluim us new end desire to secure by Letters lPetent is:

In cerbureting epperntus the oombinm tron with two reservoirs into which six? and.

combustible gas ere respectively tilled under pressure, it mixing chamber, two pipes eech connecting one or seid reservoirs to seid minimu chamber, of two nonreturn velves provided ot the entrance of seid pipes into thessid mixing chnm'ber whereby the fluids muy flow into the mixing chamber but not return to the reservoirs, e londed velve on sold mixin chember whereby the successive filling of t e snid reservoirs may be made at the some pressure, e, discherge pi fitted to suid mixinn chamber and menus or clos in? said discherge pipe 7 f I n testimony whereof ll heve signed my name to this specificction.

PAUL DUMANQIS. 

